EP1083057A2 - Kassette für Druckunterlagen und Bildaufzeichnungsgerät mit einer herausnehmbaren Kassette für Druckunterlagen - Google Patents

Kassette für Druckunterlagen und Bildaufzeichnungsgerät mit einer herausnehmbaren Kassette für Druckunterlagen Download PDF

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Publication number
EP1083057A2
EP1083057A2 EP00119609A EP00119609A EP1083057A2 EP 1083057 A2 EP1083057 A2 EP 1083057A2 EP 00119609 A EP00119609 A EP 00119609A EP 00119609 A EP00119609 A EP 00119609A EP 1083057 A2 EP1083057 A2 EP 1083057A2
Authority
EP
European Patent Office
Prior art keywords
sheet
image recording
media cartridge
frame body
recording apparatus
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00119609A
Other languages
English (en)
French (fr)
Other versions
EP1083057A3 (de
EP1083057B1 (de
Inventor
Hirofumi Hirano
Hiroshi Nakai
Keiji Takahashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Publication of EP1083057A2 publication Critical patent/EP1083057A2/de
Publication of EP1083057A3 publication Critical patent/EP1083057A3/de
Application granted granted Critical
Publication of EP1083057B1 publication Critical patent/EP1083057B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/01—Ink jet
    • B41J2/135—Nozzles
    • B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
    • B41J2/16517—Cleaning of print head nozzles
    • B41J2/1652—Cleaning of print head nozzles by driving a fluid through the nozzles to the outside thereof, e.g. by applying pressure to the inside or vacuum at the outside of the print head
    • B41J2/16523—Waste ink transport from caps or spittoons, e.g. by suction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/0065—Means for printing without leaving a margin on at least one edge of the copy material, e.g. edge-to-edge printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/0081—Sheet-storing packages, e.g. for protecting the sheets against ambient influences, e.g. light, humidity, changes in temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/10—Sheet holders, retainers, movable guides, or stationary guides
    • B41J13/103—Sheet holders, retainers, movable guides, or stationary guides for the sheet feeding section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/10—Sheet holders, retainers, movable guides, or stationary guides
    • B41J13/12—Sheet holders, retainers, movable guides, or stationary guides specially adapted for small cards, envelopes, or the like, e.g. credit cards, cut visiting cards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/02—Framework
    • B41J29/023—Framework with reduced dimensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/02—Framework
    • B41J29/026—Stackable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/36—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for portability, i.e. hand-held printers or laptop printers

Definitions

  • the present invention relates to an image recording apparatus having an ink jet recording head for recording an image by discharging ink onto a sheet constituting a recording medium, and a media cartridge detachably mountable on such apparatus.
  • the ink jet image forming apparatus for forming an image by discharging ink onto a sheet constituting a recording medium, has a high advantage in cost and is capable of easily forming a color image, and is therefore becoming popular in various imaging equipment such as a printer or a facsimile.
  • ink jet recording apparatus being relatively easily realized in a compact size, is also increasingly employed in so-called mobile printer of an easily portable size.
  • the ink jet recording apparatus disclosed in the above-mentioned patent application is an easily portable printer, and is capable of forming an image on a sheet by connecting the apparatus to an information input device such as a personal computer.
  • a first drawback is related with the compactization of the ink jet image recording apparatus.
  • the ink used for forming the image on the sheet is normally contained in an ink cartridge provided in the apparatus, and, during recording the image on the sheet, is supplied therefrom to a recording head for discharging the ink, thereby recording the image.
  • the ink cartridge naturally containing a large amount of ink required for forming images on several ten to several hundred sheets, occupies a large proportion within the space of the apparatus. This situation rendered it difficult to compact the ink jet image recording apparatus.
  • the ink jet image recording apparatus has to execute ink discharge not for image formation on the sheet, but for head cleaning or as preliminary ink discharge in order to ensure proper image recording.
  • a used ink tank for receiving such discharged ink has also to be provided within the apparatus, and such fact also hinders the compactization of the image recording apparatus.
  • the apparatus is required to be provided with rollers, a sheet tray and the like for conveying the sheets, and such members naturally increase the dimension of the apparatus.
  • a second drawback is related to the carriage and storage of the sheets for image recording.
  • the user In carrying the image recording apparatus, the user is required to carry also the image recording sheets, but, in the apparatus disclosed in the Japanese Patent Application Laid-open No. 11-240224, the image recording sheets have to be inserted into the apparatus one by one so that the user is compelled to execute very cumbersome operations.
  • the image recording operation may even fail particularly in case of continuous image formation on plural sheets. Also since there is not provided a sheet storage device for containing the sheets, the sheet may be smeared or creased and may become unsuitable for image recording while the sheets are carried by the user.
  • the sheet to be recorded by the ink jet image recording apparatus is not limited to plain paper but includes also glossy paper, coated paper, an OHP film (overhead projector sheet), seal paper etc. Particularly in case of printing a photographic image, there is often utilized a sheet having special coating.
  • the sheet with such coating may become unsuitable for image recording by the smearing or peeling of the coated layer by the contact of the user or by deposition of dusts, so that the sheets have to be tightly sealed rather than being simply contained.
  • photosensitive sheets may be discolored or deteriorated in function upon exposure to the external light, so that there has been desired a configuration allowing to carry such sheets in a sealed state and to feed such sheets into the image recording apparatus at the image recording, without manual manipulation.
  • a third drawback is related to the difference in the material of various sheets employed for image recording.
  • the sheet to be used in the ink jet image recording apparatus is not limited to plain paper but includes also glossy paper, coated paper, an OHP film (overhead projector sheet), seal paper etc. These sheets are significantly different in the friction coefficient and the base weight, owing to the difference in the materials thereof.
  • a common sheet feeding member or a common separating member for separating a single sheet.
  • a thick coated paper may result in defective conveying because of the difference in the rigidity of the sheet or in the friction coefficient.
  • the Japanese Patent Application Laid-open No. 11-227957 discloses a sheet cartridge for a portable printer, which is mountable on and detachable from the image recording apparatus and freely portable.
  • Such sheet cartridge allows to protect the sheet when they are carried by the user and can therefore resolve the aforementioned second drawback, but there has not been given any description on the first and third drawbacks, and the aforementioned sheet cartridge is based on the same concept as in so-called sheet cassette or magazine and does not solve these drawbacks.
  • Japanese Patent Application Laid-open No. 55-140436 discloses a sheet containing apparatus provided, in a cut sheet cassette containing cut sheets, with a feed roller for advancing a sheet and a separating pawl for separating a single sheet.
  • Such sheet cassette contributes to compactization of the image recording apparatus by shifting the feeding roller from the image recording apparatus to the sheet cassette, but there has not been disclosed any configuration for reducing the dimension of the ink cartridge and the sheet cassette may inversely become bulky. Also there has not been disclosed any measure for resolving the second and third drawbacks.
  • the Japanese Patent Application Laid-open No. 6-15813 discloses an information processing apparatus, incorporating an ink jet image recording apparatus.
  • the image recording apparatus can be incorporated in another apparatus by reducing the size of components of the ink jet image recording apparatus, but the configuration of the sheet containing apparatus is not disclosed with respect to the second drawback, and there has not been given any description on the third drawback. Consequently this invention is also incapable of resolving these drawbacks.
  • the Japanese Patent Application Laid-open No. 11-254700 discloses a media cartridge integrally including a sheet for image recording, an ink tank for ink supply to a recording unit, and a used ink tank for containing the used ink, for resolving the first drawback.
  • This invention allows to compactize the image recording apparatus, by eliminating the ink cartridge and the used ink tank, which have been provided in the ink jet image recording apparatus.
  • the media cartridge integrally contains the ink of the optimum composition for the sheet contained therein, the user can achieve appropriate recording by merely selecting the kind of the sheet, so that the usability can be improved.
  • the object of the present invention is to provide an ink jet image recording apparatus adapted for use in the mobile printing, and a media cartridge for containing a sheet to be recorded by such apparatus, and the present invention is featured by a media cartridge detachably mountable on an image recording apparatus for forming an image on a sheet and including a frame body which includes sheets for recording an image by the image recording apparatus, an ink containing member for containing ink to be supplied to image recording means of the image recording apparatus and to be discharged on the sheet and to be discharged on the sheet, pick-up means for feeding the sheets one by one from the frame body, and an ink absorbent member for absorbing the ink not used for recording in the image recording apparatus in a state that the frame body is mounted thereon.
  • FIG. 1 is a perspective view of an ink jet image recording apparatus according to an embodiment of the present invention.
  • an image recording unit 2 constitutes the main body of the ink jet image recording apparatus.
  • the image recording unit is provided with a base portion 2a, a right lateral plate 2b and a left lateral plate 2c standing on both sides of the base portion 2a.
  • the present ink jet image recording apparatus is made significantly compact by the present invention, and can be located in combination with other information equipment, such as inside the frame body of a personal computer or inside the frame body of a digital still camera. Instead of combination with other information equipment, it can naturally be constructed also as a simple printer.
  • a lead screw 3 is rotatably supported by the left and right lateral plates 2b, 2c and is provided with a lead gear 4 at an end thereof, specifically at the right-hand end at the side of the right lateral plate 2b in the present embodiment.
  • the lead screw 3 also serves as a guide shaft for a carrier 11 to be explained later.
  • the idler gear 7 is so positioned that the lead gear 4 meshes with the spur gear 7a and that the face gear 7b meshes with a motor pinion 10 fixed on the output shaft of a carrier motor 9 provided in the image recording unit 2.
  • the carrier motor 9 is composed of a motor capable of forward and reverse rotations, such as a stepping motor or a DC servo motor.
  • a tension plate 6 stand on the base portion 2a of the image recording unit 2, and a guide wire 5 fixed at an end thereof to the right lateral plate 2a is fixed at the other end to the end portion of the tension plate 6.
  • the guide wire 5 is composed of twisted piano wires and has flexibility with a relatively small diameter, while the tension plate 6 is composed of a material with tenacity, such as stainless steel.
  • a carrier 11 for supporting a recording head 12 constituting image recording means of ink jet recording method is mounted slidably on the lead screw 3 across a guide arm 11a provided at an end and rotatably about the lead screw 3.
  • a guide portion 11b engaging slidably with the guide wire 5 for maintaining the posture of the carrier 11. Upon reaching a predetermined position as will be explained later, the carrier 11 is rotated about the lead screw 3 by a magnetic solenoid 51.
  • Fig. 2 is a lateral cross-sectional view of the recording head 12 constituting the image recording means mounted on the carrier 11, and Fig. 3 is a cross-sectional plan view of the recording head 12.
  • the recording head 12 of the present embodiment is of so-called pit-in type which executes image recording by executing ink replenishment for every printing (image recording). The image recording method by the pit-in method will be explained later.
  • a head nozzle portion 120 is provided with unrepresented arrays of nozzles of four colors of Y (yellow), M (magenta), C (cyan) and Bk (black).
  • dust trapping filters 125 provided between the ink tank chambers 126 to 129 and the liquid chambers 121 to 124, and membranes 130 composed of a porous material having pores of a half to several microns, provided in the upper part of the ink tank chambers 126 to 129 and serving as full capacity valves.
  • membranes 130 composed of a porous material having pores of a half to several microns, provided in the upper part of the ink tank chambers 126 to 129 and serving as full capacity valves.
  • an unrepresented ink holding member with a negative pressure generating function such as of open-pore foamed polyurethane or a laminated fibrous member.
  • a suction pipe 131 is provided for generating a negative pressure in the ink tank chambers 126 to 129 through a suction joint to be explained later when a negative pressure is generated by a suction pump 52 to be explained later, and communicates with a hollow suction needle 132.
  • the suction needle 132 is pointed at the end, and is provided, on the lateral face, with a lateral hole 132a communicating with the internal hollow.
  • FIG. 3 there are also shown a hollow supply needle 133 (133Y, 133M, 133C, 133Bk) and an ink supply path 134 (134Y, 134M, 134C, 134Bk).
  • the inks of respective colors supplied from the supply needles 133 are supplied through the supply paths 134 to the ink tank chambers 126 to 129.
  • conveying rollers 13 constituting conveying means are fixed to the both ends of conveying roller shafts 14a, 14b and are provided respectively at the upstream and downstream positions of the recording head 12.
  • a conveying motor 15 for rotating the conveying roller shaft 14a and a timing belt 16 supported under an appropriate tension by unrepresented pulleys provided respectively on the conveying roller shafts 14a, 14b.
  • the conveying rollers 13 are so-called LF rollers capable of step feeding of the sheet.
  • the driving force transmitted from the conveying motor 15 to the conveying roller shaft 14a is further transmitted by the timing belt 16 to the conveying roller shaft 14b.
  • the rotation of the two conveying roller shafts 14a, 14b through the timing belt 16 allows synchronized rotations of such two shafts by a single sheet feeding motor 15, whereby all the four conveying rollers 13 can be rotated with a same speed and at a same timing.
  • Fig. 4 is a control block diagram of the image recording apparatus, wherein a control portion 18 controls the function of the image recording apparatus.
  • the control portion 18 activates a magnetic solenoid 19 according to an image recording command to feed the sheet 1 and also activates a conveying motor 15 thereby conveying the sheet 1. Also it rotates the carrier motor 9 in a predetermined direction for rotating the lead screw 3 thereby moving the carrier 11 and executing image recording on the conveyed sheet 1.
  • a media cartridge 100 detachably mountable in a mounting portion provided in the above-described ink jet image recording apparatus.
  • the media cartridge is composed of a frame body 101 for containing media and various components to be explained later.
  • the frame body 101 is provided with a slidable shutter member 102 which will be explained later.
  • a sheet containing portion 103 for containing sheets serving as recording media
  • an ink containing portion 104 for containing an ink bag 109 serving as an ink containing member which contains ink to be discharged onto the sheet by the aforementioned recording head 12
  • pickup means 105 for separating and advancing a sheet contained in the sheet containing portion 103
  • an exposed portion 106 to be covered by the shutter member 102 in a state not mounted on the image recording apparatus but to be inserted below the recording head 12 and exposed by a sliding motion of the shutter member 102 by the engagement with the main body of the image recording apparatus in state mounted thereon.
  • the sheet containing portion 103 can contain plural sheets 1, and the sheets can be replenished when they are used up.
  • the upper face and the transversal lateral faces of the sheets 1 contained in the sheet containing portion 103 are prevented from movement therein by a limiting guide 107 (cf. Fig. 24).
  • the limitation on the upper face of the sheets presses the lowermost sheet downwards, thereby facilitating the separating function of a separating portion 110 to be explained later.
  • the leading end side of the sheets 1 in the feeding direction impinges on an impinging face 110a, serving as a pickup portion 105 to be explained later, by the entire leading end of the sheet or a part thereof, whereby the sheets are prevented from movement in the feeding direction thereof.
  • the sheet containing portion 103 can contain 20 sheets at maximum.
  • the size of the sheets is selected substantially equal to the size of a visiting card, but the number and size of the sheets are not limited to those in the present embodiment but can be suitably selected according to the requirements for the apparatus.
  • an ink containing portion 104 for containing ink to be supplied to the recording head 12 constituting the image recording means for forming a record on the sheet 1.
  • the ink containing portion 104 can contain a flexible ink bag 109 serving as an ink containing member in which the ink is sealed, and plural ink bags 109 respectively containing inks of different compositions are arranged in the transversal direction of the sheet.
  • the sheet supporting plate 103a has a function of stacking sheets thereon and a protective function for the ink bags 109 contained in the ink containing portion.
  • inks of yellow 109Y, magenta 109M, cyan 109C and black 109Bk colors there are employed four inks of yellow 109Y, magenta 109M, cyan 109C and black 109Bk colors, and the ink bags 109 are correspondingly provided.
  • the kinds of the inks contained in the ink containing portion 104 are not limited to the foregoing. For example, it is possible to use three colors only of yellow, magenta and cyan and to reproduce black color by mixing these three colors. From the standpoint of reducing the dimension of the apparatus and the media cartridge, the three-color configuration based on yellow, magenta and cyan colors is advantageous. It is also possible to employ ink of a single color only, or to adopt liquid for coating the recorded surface on which the ink is discharged.
  • the amount of the ink contained in the ink containing portion 104 is necessary and sufficient for forming images on the sheets of a maximum number to be contained in the sheet containing portion 103.
  • the media cartridge 100 is so constructed as to enable replacement of the ink bags 109 or replenishment of ink only.
  • the pickup portion 105 serving as pickup means for advancing the sheets one by one from the frame body 101 to the exterior thereof in succession from the lowermost one of the sheets containing in the sheet containing portion 103, is provided with a sheet feeding member 108 for contacting the lowermost sheet 1, in the direction of gravity, of the stacked plural sheets and advancing such sheet toward the exposed portion 106, and a separating portion 110 for separating a lowermost single sheet among the sheets advanced by the sheet feeding member 108.
  • the sheet 1 has a leading edge 1a at the feeding side, a trailing end 1b, a left side edge 1c at the left side parallel to the sheet feeding direction, and a right side edge 1d at the right side.
  • the left side edge 1c of the sheet 1 is provided with a notch 500 constituting an engaging portion of a depth of about 0.5 mm.
  • the notch 500 is provided with a feeding side 500a perpendicular to the sheet feeding direction and a tapered side 500b.
  • the sheets 1 are stacked in a state that the notches 500 mutually coincide as shown in Fig. 8.
  • Fig. 9 shows the configuration of a sheet feeding member 108 provided in the media cartridge 100 for feeding the sheet 1, utilizing the notch 500 formed therein.
  • a notch joint 108 serving as a sheet feeding member is provided with a sheet receiver 108a for supporting the sheet 1 from below and constituting a plane common with an unrepresented sheet stacking plate provided horizontally in the media cartridge 100 so as to stack the sheets 1, and an engaging pawl 108b protruding from the sheet receiver 108a and adapted to engage with the notch 500 of the sheet 1, and is slidably mounted on a guide hole 111a provided in a lateral wall 111 standing in the media cartridge 100 for limiting the lateral face of the sheets.
  • the notch joint 108 is provided in a space between the lateral wall 111 and the frame body 101.
  • the notch joint 108 is positioned at the side of the exposed portion 106 within the frame body 101, namely at the side of the leading end of the sheet.
  • Such configuration is advantageous for facilitating the drive of the notch joint 108 as will be explained later and for improving facility and reliability of the sheet advancing operation, but the present invention is not limited to such configuration and may also adopt a configuration in which the notch 500 and the notch joint 108 are provided at the side of the trailing end of the sheet.
  • the sheets 1 are placed on the sheet receiving plate and the sheet receiver 108a while the notch 500 engages with the engaging pawl 108b of the notch joint 108.
  • the height of the engaging pawl 108b is selected somewhat lower than the thickness of the sheet 1 whereby the engaging pawl 108b engages only with the notch 500 of the lowermost sheet 1 among the stacked sheets.
  • the lowermost sheet 1 alone is advanced by moving the engaging pawl 108b in the sheet feeding direction while the engaging pawl 108b engages only with the notch 500 of such lowermost sheet 1.
  • An action lever 114 for activating the notch joint 108 is rotatably mounted on a shaft 111b provided on the lateral wall 111, and is provided, in an upper end portion, with a square hole 114a engaging with an action shaft 108c protruding from the lateral face of the notch joint 108 and, at the other end, with an action face 114b.
  • a compression torsion spring 112 wound on the shaft 111b and engaging at an end with the frame body 101 and at the other end with the action shaft 108c, biases the notch joint 108 through the action shaft 108c, toward a direction (indicated by an arrow A) opposite to the feeding direction. Owing to such biasing by the compression torsion spring 112 in the direction A opposite to the feeding direction, the notch joint 108 returns to the original position after the feeding of the sheet 1 in a sheet feeding operation to be explained later.
  • the compression torsion spring 112 has a coil portion with a gap in the coil as in the ordinary compression spring, and therefore functions to press the action lever 114 toward the lateral wall 111.
  • the notch joint 108 is also biased by the compression torsion spring 108, serving as the biasing means, through the action lever 114 toward the sheet 1, whereby the engaging pawl 108b is also biased in a direction engaging with the notch 500 of the sheet 1.
  • the engaging pawl 108b is brought into contact under pressure with the sheets 1 (left side edge 1c) by the compression torsion spring 112.
  • An action shaft 113 is provided in the main body of the image recording apparatus and functions as drive means for rotating the action lever 114.
  • An end of the action shaft 113 passes through a hole 115 provided in a front wall 101A of the frame body 101 and is maintained in contact with an action face 114b of the action lever 114, while the other at the side of the main body of the image recording apparatus is mounted on a push-pull magnetic solenoid 19 serving as drive means.
  • the solenoid 19 When the solenoid 19 is energized, the action shaft 113 moves toward the action lever 114 whereby the action lever 114 rotates against the spring force of the compression torsion spring 112.
  • a separating portion 110 is of a slit separation type, provided with an aperture (slit) 110b (cf. Figs. 13A and 13B) allowing passage of the lowermost sheet and an impingement portion 119a for inhibiting the movement of other sheets.
  • the impingement portion 110a utilizes a part of the sheet containing portion 103 and limits the movement of the sheets in the longitudinal direction by the impingement of the leading end portion of the sheet in the feeding direction.
  • the aperture 110b and the impingement portion 110a are formed in a part of the transversal width of the sheet, more specifically at the side of the sheet feeding member 108, but they may be provided over the entire width of the sheet.
  • an exposed portion 106 is provided, in the frame body 101 of the media cartridge 100, at the downstream side of the sheet containing portion 103 and the pickup portion 105 in the sheet feeding direction.
  • the frame body 101 is provided with a shutter member 102 for covering the exposed portion 106, and the shutter member 102 covers and protects such exposed portion 106 in a state where the media cartridge 100 is not mounted on the image recording apparatus, and, in such state, the media cartridge 100 assumes a substantially rectangular shape.
  • a shutter releasing mechanism provided in a mounting portion of the image recording apparatus engages with the shutter member 102 to cause a sliding motion thereof toward the sheet containing portion 103, thereby exposing the exposed portion 106.
  • the exposed portion 106 in such exposed state is inserted vertically below the recording head 12.
  • supply joints 116 (116Y, 116M, 116C, 116Bk) connected with the ink bags 109 (109Y, 109M, 109C, 109Bk), and a suction joint 117 connected with a suction pump 52.
  • joints 116, 117 are so positioned, when the media cartridge 100 is mounted on the image recording apparatus to expose the exposed portion 106 by the sliding motion of the shutter member 102, as to respectively oppose to supply needles 133 and a suction needle 132 provided in the carrier 11.
  • the positions of the joints 116, 117 in the exposed portion 106 are to be determined according to the positions of the supply needles 133 and the suction needle 132 provided in the carrier 11 and are not limited to the positions in the present embodiment.
  • the joints 116, 117 are composed of thin rubber membranes and, when they are pierced by the supply needles 133 and the suction needle 132 by the rotation of the carrier 11, the hollow portions of the needles 132, 133 communicate with the ink bags 109 or the suction pump 52. When the needles 132, 133 are extracted, the holes are closed by the elastic property of rubber, thereby preventing evaporation of the inks.
  • pinch rollers 118 for containing conveying rollers 13 at the mounting of the media cartridge 100 thereby constituting conveying means in cooperation with the conveying rollers 13.
  • the pinch rollers 118 are biased by a predetermined force upwards, namely toward the conveying rollers 13, by pinch roller springs 118b constituting roller biasing means in contact with roller shafts 118a as shown in Figs. 10A and 10B.
  • each pinch roller contact the conveying roller 13 under a predetermined pressure.
  • the exposed portion 106 of the present embodiment serves as a platen for supporting the sheet 1 at the image recording.
  • the conveying rollers 13 serving as conveying means in the main body of the image recording apparatus are so constructed as to substantially linearly convey the sheet advanced from the media cartridge 100 (cf. Fig. 15).
  • the spring pressure of the pinch roller springs 118b is so selected as to press the pinch rollers 118 to the conveying rollers 13 with a pressure corresponding to the thickness or material of the sheet 1 contained in the media cartridge 100. Such contact of the pinch rollers 118 with the conveying rollers 13 under such pressure allows to properly convey the sheet 1 without slippage or jamming.
  • the pinch rollers 118 are provided in the exposed portion 106, if the sheet 1 is jammed between the pinch rollers 118 and the conveying rollers 13, the pinch rollers 118 can be separated from the conveying rollers 13 by detaching the media cartridge 100. In this manner the jam process can be easily executed.
  • the exposed portion 106 is positioned vertically below the aforementioned recording head 12, and such exposed portion 106 is provided, on the upper surface thereof, with an ink absorbent member 119 of a porous material obtained by sintering power of an ink absorbent material, in an ink absorbent member containing portion 119a.
  • the ink absorbent member 119 is rendered detachable from the media cartridge 100 and can be replaced by another ink absorbent member after ink absorption.
  • the ink absorbent member 119 is not limited to the above-mentioned material, and may be composed of any material capable of absorbing ink, such as a sponge-like absorbent member.
  • a cap 150 provided openably in a predetermined position of the exposed portion 106 is so positioned as to cap a suction aperture 150a connected to an unrepresented negative pressure recovery pump.
  • the negative pressure recovery pump is made separate from the suction pump 52 connected with the suction joint 117, but the negative pressure recovery pump and the suction pump 52 may be composed of a common pump with a switching valve. Also the positions of such pumps are not limited to those shown in the present embodiment and in the accompanying drawings.
  • the shutter member 102 is closed so as to cover the exposed portion 106, as shown in Fig. 5, by an unrepresented closing mechanism when the media cartridge 100 is not mounted on the image recording apparatus.
  • the cap 150 and the joints 116, 117 of the exposed portion 106 are protected from dusts.
  • the ink absorbent member 119 containing ink can be prevented from contact by the user.
  • control portion 18 shown in Fig. 4 executes, after an initializing operation, an operation of replenishing inks of an amount required for printing an image on a sheet, in the ink tank chambers 126 to 129 of the carrier 11.
  • the carrier motor 9 is rotated in a predetermined direction to rotate the lead screw 3 thereby moving the carrier 11 along the lead screw 3, and stopping it at a predetermined position.
  • the supply needles 133 (and the suction needle 134) of the carrier 11 are in positions opposed to the supply joints 116 (and the suction joint 117) of the exposed portion as shown in Fig. 10A.
  • the control portion 18 energizes the magnetic solenoid 51 to rotate the carrier 11 toward the sheet, about the lead screw 3, whereby the supply needles 133 are inserted into the supply joints 116 as shown in Fig. 10B. At this point, the feeding of the sheet is not started, so that the insertion of the supply needles 133 is not hindered.
  • a guide wire 5, engaging with a side of the rotating end of the carrier 11, is tensioned as shown in Fig. 11A at the movement of the carrier 11, but becomes bent as shown in Fig. 11B because of the flexibility of the wire, as the carrier 11 rotates. Therefore the guide wire 5 does not hinder the movement of the carrier 11.
  • the tension plate 6 is also rendered bendable in order to allow such bending of the guide wire 5.
  • the shape and thickness of the tension plate 6 have to be so selected that the guide wire is not normally bent by the weight of the carrier 11 in the printing operation.
  • the required tension is small since the weight of the carrier 11 is extremely light. Therefore, even if the tension plate 6 is so selected as to bend following the deformation of the guide wire 5, the carrier 11 can be guided without any difficulty.
  • the suction pump 52 is activated to generate a negative pressure in the suction pipe 131.
  • the interior for example of the ink tank chamber 126 containing yellow ink also assumes a negative pressure, whereby the ink in the ink bag 109Y enters the ink tank chamber 126 through the supply joint 116Y and the supply needle 133Y.
  • ink tank chambers 127 to 129 are similarly filled with inks in succession, and, after the lapse of a predetermined time, all the ink tank chambers 126 to 129 are fully filled whereupon the ink supply is terminated.
  • the limiting guide 107 for limiting the upper surface of the stacked sheets applies a downward pressure, as explained in the foregoing.
  • the control portion 18 energizes the magnetic solenoid 19 and drives the feeding motor 15 at a predetermined timing to rotate the conveying rollers 13.
  • the sliding motion of the notch joint 108 causes the lowermost sheet 1 to be pushed forward, together with the notch joint 108, through the aperture 110b serving as the separating portion formed in the front wall 101A of the frame body 101 as shown in Fig. 13B.
  • the conveying force is not generated in the immediately upper sheet 1'.
  • a frictional force is generated by the friction between the sheets, so that the second and succeeding upper sheets receive a conveying force, though small, in the sheet feeding direction. Consequently the aperture 110b is desirably so formed that the height thereof is larger than the thickness of the sheet 1 but smaller than the thickness of two sheets.
  • the sheets other than the desired one can impinge on the impinging portion 110a present above the aperture 110b and can be separated from the sheet to be fed.
  • the separating portion may be formed by a spring (not shown), provided on the internal surface of the front wall 101A, for providing the sheet 1 with a load not weaker than the frictional force.
  • the single sheet 1 thus separated and fed forward is supported between the conveying rollers 13 and the pinch rollers 118 which are in contact with the conveying rollers 13 by mounting of the media cartridge 100 on the image recording apparatus, and is conveyed by the conveying rollers 13 to a position above the ink absorbent member 119.
  • the conveying rollers 13 are linked by the belt 16, thereby always achieving constant sheet advancing accuracy around the image recording unit.
  • the carrier motor 9 is activated when the sheet 1 is fed to the position above the exposed portion 106, whereby the carrier 11 executes reciprocating motion in the predetermined printing area, and the recording head 12 records an image on the surface of the sheet when the leading end of the sheet 1 reaches a position vertically below the recording head 12.
  • the present embodiment adopts a recording method capable of recording the image on the entire surface of the sheet.
  • the image to be recorded without forming a margin is enlarged by image processing into a size somewhat larger (approximate 2 to 3%) than the sheet 1. Therefore, when the printing of such enlarged image is started, the printing operation is initiated from a position which is in front of the leading end of the sheet by a few per cent, so that the ink for forming the image portion overflowing from the sheet 1, namely a hatched portion in Fig. 14A, is discharged to the underlying ink absorbent member 119.
  • the image overflowing from the sheet 1 is not be deposited on the rear surface of the sheet 1, because of the ink absorbing function of the ink absorbent member 119. Also as shown in Fig. 14A, the image is printed slightly larger than the sheet 1 also in the transversal direction, namely the main scanning direction of the recording head 12, and the ink overflowing from the sheet 1 is also absorbed by the ink absorbent member 119.
  • the ink for forming a hatched portion shown in Fig. 14B is discharged, as in the case of the leading end, onto the ink absorbent member 119. Also in this case, the recording operation is executed with the overflowing portion being absorbed by the ink absorbent member 119, whereby the image recording onto the sheet 1 is terminated. Thereafter the sheet bearing the formed image is discharged from the main body of the apparatus to the exterior.
  • the printing on the entire sheet 1 without marginal portion can thus be attained by enlarging the image to be printed slightly larger than the sheet 1. Since the enlarging process of the image is executed uniformly over the entire area, the printing on the entire sheet can be attained without distortion by processing the end portions of several per cent. It is also possible to enlarge the image gradually toward the peripheral areas.
  • the preliminary ink discharge for avoiding drying of the nozzles not used in the printing operation can be executed on the exposed portion 106 which is somewhat distant from the end portion of the sheet 1. Besides such preliminary ink discharge can be executed on both ends, so that the recording operation can be realized with a reduced loss in the printing time.
  • Fig. 15 shows a state of printing in the central portion of the sheet 1, in which the engaging pawl 108b of the notch joint 108 is disengaged from the notch 500 and is in pressure contact with the sheet 1 by the compression torsion spring 112 as shown in Fig. 16.
  • Such pressurized contact of the engaging pawl 108b with the sheet 1 allows to avoid skewed feeding of the sheet 1 in the frame body 101.
  • the feeding side 500a of the notch 500 is formed perpendicularly to the feeding direction in order that the feeding power from the sheet feeding member 108 can be securely applied to the notch 500, but the present invention is not limited to such configuration, and the sufficient feeding power can be transmitted even in case the notch 500 is formed with two, three or more non-perpendicular sides.
  • Figs. 17A to 17C show other shapes of the notch formed on the sheet 1.
  • Fig. 17A shows a chevron-shaped notch 500 formed by two angled sides
  • Fig. 17B shows a polygon-shaped notch 500 with four sides
  • Fig. 17C shows a semicircular (arc-shaped) notch 500.
  • the notch shape shown in Fig. 17A provides an advantage of milder touch to the hand in sheet manipulation, as the ends of the notch are formed with blunt angles.
  • Figs. 18A to 18C show a sheet 1 having a hole serving as an engaging portion.
  • Fig. 18A shows a sheet 1 having a substantially triangular hole 501A in the vicinity of the left side edge 1c
  • Fig. 18B shows a sheet 1 having a substantially rectangular hole 501B in the vicinity of the left side edge 1c.
  • the shape of the hole 501 is not limited to those illustrated but may also be circular or polygonal shape.
  • Fig. 18C shows a sheet 1 having a hole 501C at the center in the vicinity of the leading edge 1a. Formation of the hole 501C in such position allows to avoid stress toward the side and is particularly effective for a sheet of low rigidity.
  • the aforementioned notch joint 108 has to have an engaging pawl matching the shape of the hole 501 and has to be positioned not on the lateral plate 111 but under the unrepresented sheet supporting plate.
  • the mechanism for moving such notch joint 108 can be similar to that already explained in the foregoing.
  • Fig. 19 shows a sheet 1 having rack-shaped notches 502 in continuous manner over the entire lateral face (left side edge 1c).
  • a feeding gear 135 serving as a sheet feeding member is provided on the periphery thereof with teeth 135a serving as engaging pawls for engaging with the notches 502.
  • the sheet 1 can be fed by rotating the feeding gear 135 by an unrepresented feeding motor which constitutes the pickup portion together with the feeding gear 135.
  • the guide wire 5 consisting of twisted piano wires is used for maintaining the position of the carrier 11, but the present invention is not limited to such configuration and there may be employed a guide ribbon 136, composed of a ribbon-shaped flexible material, as shown in Figs. 20A and 20B.
  • Such guide ribbon 136 is supported between the tension plate 6 and the right lateral plate 2a of the base 2 as in the case of the guide wire 5, and, during the printing operation, remains in a vertical position and supports the carrier 11 on an edge as shown in Fig. 20A, thus functioning as the guide without bending under a slight tension.
  • the tension plate 6 is deformed as shown in Fig. 20B to release the tension of the guide ribbon 136.
  • the guide ribbon 136 can be easily bent in a direction across the thickness, so that the rotating operation of the carrier 11 can be executed smoothly.
  • the sheet 1 can be conveyed appropriately without slippage or jamming by so selecting the pressure of such plate springs 118c as to generate a pressure matching the thickness or material of the sheet 1 in cooperation with the conveying rollers 13.
  • the use of such plate springs 118c allows to provide the media cartridge and the image recording apparatus simplified in structure and reduced in cost.
  • the present invention is not limited to such configuration and the pinch roller springs 118b may also provided on the base 2 (base portion 2a) of the image recording unit as shown in Fig. 22.
  • the exposed portion 106 is provided, at the bottom face thereof, with apertures for contacting the pinch roller springs 118b with the pinch rollers 118.
  • the frame body 101 incorporating the sheet 1, the ink, the feeding member 108 for feeding the sheet 1 and the separating portion 110 allows to compactize the image recording apparatus, thereby enabling to incorporate the image recording apparatus in the interior of another equipment.
  • the frame body 101 incorporating the sheet 1 and the ink which are consumables, facilitates to use the ink matching the kind of the sheet desired by the user.
  • the ink can be contained in an amount matching the amount of the sheets, the ink can be almost used up when all the sheets contained in the media cartridge 100 are recorded. It is therefore not necessary to store the unnecessary ink in the cartridge 100, thereby providing apparatus of high cost advantage.
  • the media cartridge 100 can be re-used by replenishing the sheets and the ink.
  • the ink absorbent member 119 is provided in the media cartridge 100, it can be easily replaced by detaching the ink-containing member and attaching a new member at the re-use of the media cartridge 100.
  • the absorbent member 119 can be easily replaced by detaching the used one and attaching the new one at the re-use of the cartridge 100, with improved work efficiency.
  • the ink absorbent member or the used ink tank is not designed for replacement and has therefore to absorb or store a large amount of ink. Therefore such component for handling the used ink becomes inevitably bulky, eventually resulting in an increase in the dimension and cost of the image recording apparatus.
  • the media cartridge 100 contains the ink absorbent member 119, it can be replaced at the replenishment of the sheet 1 or the ink, so that the absorbent member 119 is only required to absorb the surplus used ink resulting from the ink contained in the same cartridge.
  • the ink absorbent member 119 can achieve its object as long as it can securely absorb thus estimated amount and is replaced at the replenishment of the sheet and the ink. Consequently the ink absorbent member 119 can be made smaller in size. Also, since it is periodically replaceable, it can be composed of an inexpensive material with moderate absorbing ability, thereby contributing significantly to the cost reduction of the apparatus.
  • the positional precision between the sheet 1 and the pickup portion 105 can be maintained at a high level even when the media cartridge 100 is mounted on or detached from the image recording apparatus.
  • the positional precision may be deteriorated for example by an impact at the attaching or detaching of the media cartridge 100.
  • the media cartridge 100 integrally containing the sheet 1 and the pickup portion 105 allows to prevent the above-mentioned drawbacks resulting from the deterioration of the positional precision, thereby achieving image recording of high reliability.
  • the presence of the pickup portion in the media cartridge allows to set the pickup portion 105 according to the material or property of the sheet. For example it is possible to adjust the aperture or the feeding power of the separating portion 110 according to the sheet thickness, thereby achieving satisfactory feeding operation. It is thus possible to improve the applicability and reliability of the image recording apparatus.
  • the present variation is featured in the configuration of the media cartridge.
  • the sheet containing portion 103 and the ink containing portion 104 are similar to those in the first embodiment and will not, therefore, be explained.
  • Fig. 23 is a schematic perspective view of a media cartridge 100 in a state where an exposed portion 210 is exposed by the sliding motion of the shutter member 102;
  • Fig. 24 is a perspective view of the media cartridge 100 in a state without the shutter member 102 and the upper cover of the frame body 101;
  • Fig. 25 is a perspective view in a state shown in Fig. 24 and without the sheet 1;
  • Fig. 26 is a schematic lateral view of the media cartridge 100;
  • Fig. 27 is a perspective view showing drive means and a pressurizing member to be explained later and provided in the main body of the image recording apparatus.
  • the pickup portion 105 for advancing the sheets 1, contained in the sheet containing portion 103, one by one from the lowermost sheet 1 is provided with a sheet feeding roller 200 serving as the sheet feeding member 108 for contacting the lowermost sheet 1 and advancing the same toward the exposed portion 210, and a separating portion 110 for separating the lowermost sheet 1 among the sheets advanced by the sheet feeding roller 200.
  • the sheet feeding roller 200 is provided under the sheet containing portion 103 and in front of the ink containing portion 104, namely at the downstream side of the ink containing portion 104 in the sheet feeding direction.
  • the sheet feeding rollers 200 is composed of a substantially cylindrical roller, but it may also be composed of a roller with a substantially semicircular cross section.
  • the sheet feeding roller 200 is detachably supported by the media cartridge.
  • the sheet feeding roller 200 is rotated by a sheet feeding motor 201 provided in the main body of the image recording apparatus.
  • the driving force for the sheet feeding roller 200 is transmitted by the engagement of a coupling 200b, formed on a sheet feeding roller shaft 200a fitted in a hole 101C on a lateral face 101B of the frame body 101, with a coupling 202 provided on a drive shaft 203 driven by the sheet feeding motor 201.
  • the length L1 of the sheet containing portion 103 in the sheet feeding direction is approximately same as the sum of the length L2 of the ink containing portion 104 and that L3 of the sheet feeding roller 200 in the sheet feeding direction.
  • the length L4 in the transversal direction of the sheet 1 is selected same as the length of the ink containing portion 104 in the transversal direction, and the length of the sheet feeding roller 200 in the transversal direction (namely the length of the shaft 200a supporting the roller 200 in the thrust direction) is made shorter than the sheet width L4.
  • the ink containing portion 104 and the pickup portion 105 are substantially included in the projected area of the sheet containing portion 103.
  • the size of the frame body 101 is naturally at least equal to the size of the contained sheet, but the sheet feeding roller 200 and the ink containing portion 104 can be accommodated within such sheet size, so that the media cartridge 100 can be compactized.
  • the height H1 of the ink containing portion 104 is selected approximately equal to the height H2 of the sheet feeding roller 200, so that the components are efficiently housed in the frame body 101 without wasted space under the sheet containing portion 103. It is therefore possible to reduce the size and simplify the structure of the frame body 101.
  • the separating portion 110 is of a slit separation type provided with an aperture (slit) 110b for passing the lowermost sheet 1 and an impingement portion 110a for inhibiting the movement of other sheets.
  • the impingement portion 110a is composed of a part of the sheet containing portion 103, and limits the movement of the sheets 1 in the longitudinal direction by being impinged by the leading end of the sheets 1.
  • the aperture 110b and the impingement portion 110a are provided in a part of the width of the sheet 1, namely at the side of the sheet feeding roller 200, but they may be formed over the entire width of the sheet.
  • the exposed portion in the foregoing embodiment also has a function of platen for supporting the sheet 1 in the image recording, but, in the present embodiment, the platen portion (not shown) is provided in the main body of the image recording apparatus. Also the pinch rollers (not shown) are provided in the main body of the image recording apparatus.
  • An ink absorbent member 211 formed in the same manner and with the same material as in the foregoing embodiment, is provided in a part of the right side of the exposed portion 210 in Fig. 23.
  • the ink absorbent member 211 executes absorption of the ink discharged for example in the preliminary discharge and absorption of the ink overflowing in the printing on the entire area of the sheet as in the foregoing embodiment, and provides the aforementioned advantages obtained by positioning the ink absorbent member 211 in the exposed portion 210 of the media cartridge 100.
  • the feeding operation for the sheet 1 will be briefly explained.
  • the main body engages with the shutter member 102 to cause the sliding motion thereof, thus exposing the exposed portion 210, which thus awaits the start of the recording operation, in a position vertically below the recording head 12 (state shown in Fig. 23, the recording apparatus being not shown).
  • the ink supplying operation will not be explained as it is same as in the foregoing embodiment.
  • a pressurizing member 220 is provided in the main body of the image recording apparatus and applies a pressure required for sheet feeding toward the sheet feeding roller 200.
  • the pressurizing member 220 is provided vertically above the sheet feeding roller 200, with a length approximately equal to the thrust length thereof. Until the sheet feeding is initiated, the pressurizing member 220 waits in a state separated from the uppermost sheet.
  • the shutter member 102 is provided with an aperture 102a for enabling pressurization of the sheet 1 by the pressurizing member 220, and the aperture 102a is so provided as to be positioned vertically below the pressurizing member 220 when the shutter member 102 slides so as to expose the exposed portion 106.
  • the sheet feeding roller 200 is driven by the sheet feeding motor 201 provided in the main body of the image recording apparatus.
  • the coupling 202 of the sheet feeding motor 200 is provided in a position opposed to the coupling 200b of the aforementioned sheet feeding roller 200 when the media cartridge 100 is mounted on the main body of the image recording apparatus.
  • the couplings do not mutually engage in a state when the media cartridge 100 is mounted on the main body.
  • the sheet feeding motor 201 is activated to move the drive shaft 203 toward the media cartridge 100, whereby the coupling 200b of the sheet feeding roller 200 engages with the coupling 202 provided on the drive shaft 203. Almost at the same time, the pressurizing member 220 is lowered to contact the uppermost sheet.
  • the engaging operation of the couplings and the lowering operation of the pressurizing member 220 are executed by rotating the sheet feeding motor 201 by a predetermined amount in a direction opposite to that in the sheet feeding operation. Upon contacting the uppermost sheet, the pressurizing member 220 gives a predetermined sheet feeding pressure to the sheet feeding roller 200, and awaits the start of rotation of the sheet feeding roller 200.
  • the sheet feeding motor 201 rotates the sheet feeding roller 200 in the sheet feeding direction, thereby advancing the lowermost sheet 1 through the aperture (slit) 110b formed in the lowest part of the impingement portion 110a.
  • the sheet feeding pressure given by the pressurizing member 220 is determined according to the friction coefficient between the sheets, that between the sheet and the roller 200 and the feeding power of the sheet feeding roller 200.
  • the sheet feeding motor 201 is rotated in a direction opposite to the sheet feeding direction, thereby separating the pressurizing member from the uppermost sheet and returning it to the initial position, thus terminating the drive of the sheet feeding roller 200.
  • the coupling 202 of the drive shaft 203 is moved to the initial position, in order to disengage the couplings. In this manner, while the sheet is conveyed by the conveying means, unnecessary feeding power is not supplied to other sheets in the sheet containing portion, thereby avoiding double feeding.
  • the above-explained variation of the media cartridge 100 allows, in addition to the advantages of the present invention explained in the foregoing embodiment, to position the sheet feeding roller 200 in a space which is made available by the superposed positioning of the ink containing portion 104 and the sheet containing portion 103, thereby enabling to reduce the dimension of the media cartridge.
  • the sheet need not be provided with an engaging portion, so that the processing cost of the sheet can be lowered. Also the cost of the media cartridge 100 itself can be lowered, since the complex sheet feeding member 108 need not be constructed.
  • the present variation is so designed as to advance the sheets in succession from the lowermost one, because the sheet for image formation by ink discharge often bears a special coating thereon. More specifically, the contact of the coated sheet surface and the roller may result in peeling of the coating or smear of the sheet surface for example by deposition of paper dust. Such drawbacks can be avoided by advancing the sheet by contact of the roller with the rear surface of the sheet.
  • the slit separation method employing the aperture 110b and advancing the sheets from the lowermost one, has the advantages of simplifying the cartridge and reducing the cost thereof, since the media cartridge 100 does not require therein a member for lifting the sheets 1 to a predetermined position.
  • the media cartridge 100 is to be re-used by replenishment of the sheet and the ink when they are consumed, and this variation enables cleaning of the smear or paper dust sticking to the sheet feeding roller 200 in such operation. Such cleaning is extremely difficult if the sheet feeding roller 200 is provided in the main body of the image recording apparatus. The presence of the sheet feeding roller 200 in the media cartridge 100 facilitates such cleaning operation.
  • the sheet 1 contained in the media cartridge 100 for image recording may be different in the material, thickness, friction coefficient etc.
  • Such different sheets if fed by the feeding roller provided in the image recording apparatus, may result in defects such as slippage or double feeding because the feeding property is different for each sheet.
  • the sheet feeding roller is provided in the image recording apparatus, such roller cannot be replaced to a different material or a different roller diameter in order to cope with the difference in the kind of the image recording sheet, resulting from the replacement of the media cartridge, thereby eventually leading to the above-mentioned drawbacks.
  • the roller 200 can be selected so as to match the sheet 1 contained in such cartridge 100. It is thus made possible to select the material of the elastic member constituting the sheet feeding roller 200, thereby avoiding the above-mentioned drawbacks.
  • the positional precision can be improved since the sheet 1 and the sheet feeding roller 200 are housed in a single frame body.
  • the media cartridge explained in detail in the foregoing and the image recording apparatus capable of detachably mounting such media cartridge provides a mobile printing environment that cannot be attained with the conventional apparatus.
  • the object of the invention is to provide an ink jet image recording apparatus adapted for use in the mobile printing, and a media cartridge for containing a sheet to be recorded by such apparatus, and the invention is featured by a media cartridge detachably mountable on an image recording apparatus for forming an image on a sheet and including a frame body which includes sheets for recording an image by the image recording apparatus, an ink containing member for containing ink to be supplied to image recording means of the image recording apparatus and to be discharged on the sheet and to be discharged on the sheet, pick-up means for feeding the sheets one by one from the frame body, and an ink absorbent member for absorbing the ink not used for recording in the image recording apparatus in a state that the frame body is mounted thereon.

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Ink Jet (AREA)
  • Handling Of Continuous Sheets Of Paper (AREA)
  • Handling Of Cut Paper (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
EP00119609A 1999-09-10 2000-09-07 Kassette für Druckunterlagen und Bildaufzeichnungsgerät mit einer herausnehmbaren Kassette für Druckunterlagen Expired - Lifetime EP1083057B1 (de)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP25799499 1999-09-10
JP25799399 1999-09-10
JP25799399 1999-09-10
JP25799499 1999-09-10
JP2000259123 2000-08-29
JP2000259123A JP2001146008A (ja) 1999-09-10 2000-08-29 メディアカートリッジ及びメディアカートリッジを着脱自在に構成された画像記録装置

Publications (3)

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EP1083057A2 true EP1083057A2 (de) 2001-03-14
EP1083057A3 EP1083057A3 (de) 2002-10-09
EP1083057B1 EP1083057B1 (de) 2006-08-16

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US (1) US6523933B1 (de)
EP (1) EP1083057B1 (de)
JP (1) JP2001146008A (de)
KR (1) KR100408463B1 (de)
CN (1) CN1174859C (de)
AT (1) ATE336383T1 (de)
AU (1) AU765662B2 (de)
CA (1) CA2317847A1 (de)
DE (1) DE60030055T2 (de)
SG (1) SG89350A1 (de)
TW (1) TW507165B (de)

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EP1759864A1 (de) * 2005-09-01 2007-03-07 Funai Electric Co., Ltd. Bilderzeugungsgerät
ITMI20102479A1 (it) * 2010-12-30 2012-07-01 Telecom Italia Spa Ink-jet printer for printing on cards
WO2019205044A1 (en) * 2018-04-26 2019-10-31 Hewlett-Packard Development Company, L.P. Conveyance of printable media to printers

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JP2002273918A (ja) 2001-03-21 2002-09-25 Canon Inc プリンタおよびディジタルカメラ
SG152904A1 (en) * 2000-10-20 2009-06-29 Silverbrook Res Pty Ltd Cartridge for an electronic pen
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JP2003072107A (ja) * 2001-06-11 2003-03-12 Canon Inc 携帯電子装置、携帯印刷装置、携帯電子機器、充電装置及び携帯電子機器システム
DE60335523D1 (de) 2002-02-13 2011-02-10 Silverbrook Res Pty Ltd Drucker für transportvorrichtung mit drahtlosem datenanschluss und auswerfbarer kartusche
JP3907535B2 (ja) * 2002-06-21 2007-04-18 キヤノン株式会社 印刷装置および用紙カートリッジ
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US6866374B2 (en) 2002-06-21 2005-03-15 Canon Kabushiki Kaisha Ink cartridge
JP4564738B2 (ja) * 2002-11-15 2010-10-20 キヤノン株式会社 インクジェット記録装置
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JP5572857B2 (ja) * 2009-09-11 2014-08-20 株式会社ミマキエンジニアリング プリンタ装置及びローラアッセンブリ
JP5785968B2 (ja) * 2013-02-21 2015-09-30 京セラドキュメントソリューションズ株式会社 記録媒体収納カセット及びそれを備えた画像形成装置
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CN103660618B (zh) * 2013-11-21 2015-10-21 浙江大学 便捷取纸装置
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CN107720342A (zh) * 2016-08-10 2018-02-23 鸿富锦精密工业（深圳）有限公司 纸匣及采用该纸匣的列印设备
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JP7027209B2 (ja) * 2018-03-23 2022-03-01 富士通コンポーネント株式会社 記録紙カセット及び印刷システム
JP7104543B2 (ja) * 2018-04-09 2022-07-21 富士通コンポーネント株式会社 記録紙カセット
JP2023020124A (ja) 2021-07-30 2023-02-09 キヤノン株式会社 ハンドヘルド型の記録装置
JP2023020119A (ja) 2021-07-30 2023-02-09 キヤノン株式会社 ハンドヘルド型の記録装置
JP2023020127A (ja) 2021-07-30 2023-02-09 キヤノン株式会社 ハンドヘルド型の記録装置

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EP1480827A1 (de) * 2002-02-13 2004-12-01 Silverbrook Research Pty. Limited Kompaktdrucker
EP1480827A4 (de) * 2002-02-13 2008-10-08 Silverbrook Res Pty Ltd Kompaktdrucker
US7506943B2 (en) 2002-02-13 2009-03-24 Silverbrook Research Pty Ltd In car entertainment unit including printer
EP1759864A1 (de) * 2005-09-01 2007-03-07 Funai Electric Co., Ltd. Bilderzeugungsgerät
ITMI20102479A1 (it) * 2010-12-30 2012-07-01 Telecom Italia Spa Ink-jet printer for printing on cards
WO2012090163A1 (en) * 2010-12-30 2012-07-05 Olivetti S.P.A. Ink-jet printer for printing on cards
EP2658721A1 (de) 2010-12-30 2013-11-06 OLIVETTI S.p.A. Tintenstrahldrucker zum drucken auf karten
US9079395B2 (en) 2010-12-30 2015-07-14 Sicpa Holding Sa Ink-jet printer for printing on cards
WO2019205044A1 (en) * 2018-04-26 2019-10-31 Hewlett-Packard Development Company, L.P. Conveyance of printable media to printers

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AU765662B2 (en) 2003-09-25
EP1083057A3 (de) 2002-10-09
US6523933B1 (en) 2003-02-25
CA2317847A1 (en) 2001-03-10
AU5658500A (en) 2001-03-15
DE60030055T2 (de) 2007-02-15
CN1174859C (zh) 2004-11-10
TW507165B (en) 2002-10-21
ATE336383T1 (de) 2006-09-15
KR20010050414A (ko) 2001-06-15
CN1289684A (zh) 2001-04-04
SG89350A1 (en) 2002-06-18
JP2001146008A (ja) 2001-05-29
DE60030055D1 (de) 2006-09-28
KR100408463B1 (ko) 2003-12-06
EP1083057B1 (de) 2006-08-16

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